Tilmaamaha alaabta: 440 / 440C kubbadda birta ah ee birta ah ayaa leh adkaansho sare, iska caabin miridh wanaagsan, xirashada iska caabin, magnetism. Waxay noqon kartaa baakado saliid leh ama qalalan.
Meelaha arjiga:440 kubadaha birta ahama waxaa badanaa loo isticmaalaa wershadaha leh shuruudaha sare ee saxsanaanta, adkeynta, iyo ka hortagga miridhku, sida xawaaraha sare iyo sawaxanka hoose ee biraha birta ah, matoorrada, qaybaha aerospace, qalabka saxda ah, qalabka otomaatiga, filtarka, iwm. ;